HIV virus blocked by new contraceptive

A new contraceptive device could be an effective method of stopping the spread of HIV, research has found.

In laboratory testing, scientists from Weill Cornell Medical College have discovered that a new vaginal ring can prevent sexually transmitted HIV infection, as well as conception.

The study, published in the journal Aids, noted that multiple types of non-hormonal agents and microbicides could also offer another method of blocking sexually transmitted infections.

Dr Brij Saxena, lead author and the Harold and Percy Uris professor of reproductive biology and professor of endocrinology in the department of obstetrics and gynecology at Weill Cornell Medical College, said: "This device is a new approach to birth control, because it avoids the long-term use of hormonal methods that have been associated with increased risk of certain cancers.

"At the same time, this is the first device to simultaneously offer the possibility to prevent unintended pregnancy and HIV transmission."

Compounds used in the device have already been approved for human use.

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